Add web push subscription model

app/models/user.rb

@@ -42,6 +42,7 @@ class User < ApplicationRecord
 
   has_many :subscriptions, dependent: :destroy_async
   has_many :totp_recovery_codes, dependent: :destroy_async
+  has_many :web_push_subscriptions, dependent: :destroy_async
 
   has_one :profile, dependent: :destroy
   has_one :theme, dependent: :destroy

app/models/web_push_subscription.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class WebPushSubscription < ApplicationRecord
+  belongs_to :user
+end

db/migrate/20220910000514_create_web_push_subscriptions.rb

@@ -0,0 +1,11 @@
+class CreateWebPushSubscriptions < ActiveRecord::Migration[6.1]
+  def change
+    create_table :web_push_subscriptions do |t|
+      t.bigint :user_id, null: false
+      t.json :subscription
+      t.timestamps
+    end
+
+    add_index :web_push_subscriptions, :user_id
+  end
+end

db/schema.rb

@@ -382,5 +382,13 @@ ActiveRecord::Schema.define(version: 2022_12_27_065923) do
     t.index ["user_id"], name: "index_users_roles_on_user_id"
   end
 
+  create_table "web_push_subscriptions", force: :cascade do |t|
+    t.bigint "user_id", null: false
+    t.json "subscription"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["user_id"], name: "index_web_push_subscriptions_on_user_id"
+  end
+
   add_foreign_key "profiles", "users"
 end